Cigarette holders



Aug. 26, 1958 J. M. BARNETT 2,849,006

CIGARETTE HOLDERS Filed Jan. 11, 1955 INVENTOR. BY s nited States Patent CIGARETTE HOLDERS Jos Mazar Barnett, Buenos to Filtox S. A., Montevideo, Uruguay Aires, Argentina, assignor Uruguay, a corporation of The present invention relates to a filter holder for cigars and cigarettes and to a replaceable filter therefor.

This application is a continuation-in-part of my abandoned application Serial No. 394,120 filed November 24, 1953.

In a filter holder according to the invention, there is an outer tube within which the filter cartridge is removably disposed and the construction is such that the outer tube does not come in contact with the smoke or with the cigarette or cigar, thus obviating cleaning of the tube. The filtering material in the filter cartridge provides a relatively long path for the passage of smoke and for the removal of toxic matter in the smoke. In addition, the tube and cartridge are constructed so that air or smoke cannot pass between the tube and cartridge. The cartridge can be easily and quickly slid into or out of the tube and when in position in the tube it is accurately and precisely positioned.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a longitudinal sectional view of the outer tube of the holder;

Fig. 2 is a longitudinal sectional view of the filter cartridge of the holder; and

Fig. 3 is a longitudinal sectional view of the assembled tube and cartridge ready for use, with a cigarette shown in position.

Referring now to the drawings in detail, the filter holder of the invention comprises a long unitary tube a open at both ends and a filter cartridge b. The tube a tapers from one end where it has a border 2 to the opposite end which is formed as a mouthpiece portion 1 having a border 3, borders 2 and 3 being the end surfaces of the tube. The tube, being hollow, thus has a cavity a extending therethrough. The tube ends are thickened to form internal annular shoulders which, due to the taper of the tube, constitute the termini of frusto-conical surfaces 4 and 5 extending from said shoulders to the tube extremities, i. e. to the borders 2 and 3.

The cartridge b has at one end an adapter portion 6 adapted to receive in its cavity 6 a cigar or cigarette 14 (Fig. 3). The cartridge is hollow and tapering and receives filtering grains or granules 7 which are in direct contact with the inner surface of the cartridge and substantially fill the cartridge between the single perforated sealing disk or diaphragm apertured at 10' and the inturned flange 8 apertured at 9. The filtering grains are larger in size than the apertures 9 and 10' so that they cannot escape therethrough and are confined between the disk or diaphragm 10 and flange 8, the disk or diaphragm being wedged in position adjacent the juncture of the adapter portion 6 with the remainder of the cartridge wall, after the filtering grains of granules 7 are loaded. There is also provided at the smaller end of the cartridge a thickened end portion forming an external frusto-conical surface 13, extending from a shoulder to the mouthpiece "ice end said mouthpiece end being inturned to form the said flange 8. Surface 13 is complementary to surface 5. A similar surface 12 is formed near the other end of the cartridge and extends from a shoulder to the step 11 at the juncture of the surface 12 with adapter portion 6. Surface 12 is complementary to surface 4.

It will also be observed that the distance b from step 11 to the opposite terminus of the cartridge is equal to the length of tube a so that, when assembled, border 2 of tube a abuts step 11 and terminates flush with the cartridge at the mouthpiece end. Moreover, surfaces 12 and 4 and surfaces 13 and 4 precisely and accurately fit in coextensive contact (Fig. 3), thus forming seals preventing the admission of air or smoke between the tube and cartridge. The step 11 also serves as a limiting stop when the cartridge is inserted in the tube and ensures the desired positioning of the frusto-conical surfaces. It will thus be appreciated that the frusto-conical surfaces 4, 5, 12 and 13 ensure accurate fit and positioning of the tube and cartridge and prevent misalignment of the parts, while at the same time preventing the passing of air through the holder or between its parts when the user is not actively smoking the cigarette. The cigarette does not come into contact with the tube and the smoke can only travel through the cartridge to the mouthpiece end in a relatively long detoxifying path.

After limited use of the holder, the cartridge is removed and a fresh one substituted. The tube requires no cleaning and is permanent for use with an unlimited succession of cartridges.

The invention is defined by the appended claims within the terms of which details of construction may be modified without departing from the invention.

I claim:

1. A cigar or cigarette holder comprising a long unitary tube open at both ends, said tube tapering from one end which constitutes .a border to the other end which is formed as a mouthpiece portion and the tube ends being thickened to form internal annular shoulders constituting termini of frusto-conical surfaces extending from said shoulders to the tube extremities, a removable tubular filtering cartridge in said tube having frusto-conical surfaces complementary to and in contact with the frustoconical surfaces of said tube and said cartridge terminating at one end flush with the mouthpiece end of thetube and at the other end having a cigar or cigarette adapter portion extending beyond the tube and having a step against which the tube border abuts for limiting insertion of said cartridge in said tube, the said frustoconical surfaces ensuring accurate and precise fit of said cartridge within said tube, a single perforated disk wedged in the adapter portion of said filtering cartridge, an inturned annular flange at the end of the cartridge within the mouthpiece portion of the tube, and a body of granular filtering material in said filtering cartridge in direct contact therewith and substantially completely filling the same, said granular filtering material extending between said perforated disk and said inturned annular flange and being confined thereby and having its granules of an individual particle size such that the granules cannot escape from the cartridge.

2. A removable filter cartridge for a cigar or cigarette holder comprising a tubular member having a bore tapering from one end to the other, a thickened portion at the smaller end of the tubular member forming an external frusto-conical surface which is inturned at its extremity to form a flange with a small aperture therethrough, a thickened portion at the larger end of the tubular member forming an external frusto-conical stepped surface, the extremity of the said larger end constituting an adapter w for the reception of one end of a cigar or cigarette, a single perforated sealing diaphragm wedged in said adapter portion, and a mass of granular filtering material in direct contact with and filling the tubular member between the sealing diaphragm and the inturned flange and having 5 its individual granules of a size greater than the apertnre at the smaller extremity of the tubular member and greater than the perforations of said single perforated sealing diaphragm and confined in position by said flange and said diaphragm to provide a long axial passage for 10 smoke.

References Cited in the file of this patent UNITED STATES PATENTS 

